HUT56526A - Process for reducing the quantity of nitrogen oxides and for minimizing the formation of other impurities - Google Patents

Process for reducing the quantity of nitrogen oxides and for minimizing the formation of other impurities

Info

Publication number
HUT56526A
HUT56526A HU396088A HU396088A HUT56526A HU T56526 A HUT56526 A HU T56526A HU 396088 A HU396088 A HU 396088A HU 396088 A HU396088 A HU 396088A HU T56526 A HUT56526 A HU T56526A
Authority
HU
Hungary
Prior art keywords
nitrogen oxides
minimizing
impurities
formation
reducing
Prior art date
Application number
HU396088A
Other languages
Hungarian (hu)
Other versions
HU205586B (en
Inventor
William Robert Epperly
John Henry O'leary
James Christopher Sullivan
Original Assignee
Fuel Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21963912&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HUT56526(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fuel Tech Inc filed Critical Fuel Tech Inc
Publication of HUT56526A publication Critical patent/HUT56526A/en
Publication of HU205586B publication Critical patent/HU205586B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00058—Temperature measurement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Treating Waste Gases (AREA)
  • Catalysts (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Control Of Turbines (AREA)

Abstract

A process for the reduction of nitrogen oxides in an effluent from the combustion of a carbonaceous fuel while minimizing the production of other pollutants is presented. The process comprises introducing (most commonly by injecting) a nitrogen oxides reducing treatment agent into an effluent according to a nitrogen oxides reducing treatment regimen under conditions such that the treatment agent is operating on the high temperature or right side of its nitrogen oxides reduction versus effluent temperature curve, especially on the high temperature or right side of the curve plateau.
HU883960A 1987-05-14 1988-05-04 Process for diminishing concentration of nitrogen-oxides with burning carbon-containing fuels HU205586B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/050,198 US4780289A (en) 1987-05-14 1987-05-14 Process for nitrogen oxides reduction and minimization of the production of other pollutants

Publications (2)

Publication Number Publication Date
HUT56526A true HUT56526A (en) 1991-09-30
HU205586B HU205586B (en) 1992-05-28

Family

ID=21963912

Family Applications (1)

Application Number Title Priority Date Filing Date
HU883960A HU205586B (en) 1987-05-14 1988-05-04 Process for diminishing concentration of nitrogen-oxides with burning carbon-containing fuels

Country Status (20)

Country Link
US (1) US4780289A (en)
EP (1) EP0313648B1 (en)
JP (1) JP2817929B2 (en)
CN (1) CN1030193A (en)
AT (1) ATE116950T1 (en)
AU (1) AU594299B2 (en)
CA (1) CA1309230C (en)
DD (1) DD274171A5 (en)
DE (2) DE3852747T2 (en)
DK (1) DK731788A (en)
ES (1) ES2006659A6 (en)
FI (1) FI88464C (en)
GR (1) GR880100315A (en)
HU (1) HU205586B (en)
MX (1) MX167771B (en)
NO (1) NO890147L (en)
PL (1) PL272425A1 (en)
PT (1) PT87493B (en)
WO (1) WO1988008824A1 (en)
YU (1) YU92888A (en)

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US4908194A (en) * 1988-03-29 1990-03-13 Natec Mines Ltd. Method for baghouse brown plume pollution control
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US5441713A (en) * 1988-04-29 1995-08-15 Nalco Fuel Tech Hardness suppression in urea solutions
CH675623A5 (en) * 1988-09-27 1990-10-15 Von Roll Ag
US5240689A (en) * 1989-06-19 1993-08-31 Noell, Inc. Process using two-stage boiler injection for reduction of nitrogen
EP0432166A1 (en) * 1989-07-04 1991-06-19 Fuel Tech Europe Limited Lance-type injection apparatus for introducing chemical agents into flue gases
US5047219A (en) * 1989-08-18 1991-09-10 Fuel Tech, Inc. Hybrid process for nitrogen oxides reduction
US5262138A (en) * 1989-08-31 1993-11-16 Union Oil Company Of California Process for NOx abatement
US4978514A (en) * 1989-09-12 1990-12-18 Fuel Tech, Inc. Combined catalytic/non-catalytic process for nitrogen oxides reduction
US5139754A (en) * 1989-09-12 1992-08-18 Fuel Tech, Inc. Catalytic/non-catalytic combination process for nitrogen oxides reduction
DE3935402C1 (en) * 1989-10-24 1991-02-21 Martin Gmbh Fuer Umwelt- Und Energietechnik, 8000 Muenchen, De
US4997631A (en) * 1990-03-07 1991-03-05 Fuel Tech, Inc. Process for reducing nitrogen oxides without generating nitrous oxide
US5165903A (en) * 1990-04-16 1992-11-24 Public Service Company Of Colorado Integrated process and apparatus for control of pollutants in coal-fired boilers
US5240688A (en) * 1990-08-01 1993-08-31 Fuel Tech Gmbh Process for the in-line hydrolysis of urea
US5543123A (en) * 1990-08-01 1996-08-06 Nalco Fuel Tech Low pressure formation of a urea hydrolysate for nitrogen oxides reduction
US5229090A (en) * 1991-07-03 1993-07-20 Nalco Fuel Tech Process for nitrogen oxides reduction to lowest achievable level
US5536482A (en) * 1992-10-13 1996-07-16 Nalco Fuel Tech Process for pollution control
US5489419A (en) * 1992-10-13 1996-02-06 Nalco Fuel Tech Process for pollution control
DE69416137T2 (en) * 1993-05-07 1999-07-22 Nalco Fuel Tech, Naperville, Ill. METHOD AND DEVICE FOR IMPROVING THE DISTRIBUTION OF NOx-REDUCING CHEMICALS IN A MEDIUM WITH A HIGH SOLID CONTENT
US5404841A (en) * 1993-08-30 1995-04-11 Valentine; James M. Reduction of nitrogen oxides emissions from diesel engines
US5489420A (en) * 1994-03-10 1996-02-06 Nalco Fuel Tech Nitrogen oxides reducing agent and a phosphate
US5462718A (en) * 1994-06-13 1995-10-31 Foster Wheeler Energy Corporation System for decreasing NOx emissions from a fluidized bed reactor
US5985222A (en) * 1996-11-01 1999-11-16 Noxtech, Inc. Apparatus and method for reducing NOx from exhaust gases produced by industrial processes
US6048510A (en) * 1997-09-30 2000-04-11 Coal Tech Corporation Method for reducing nitrogen oxides in combustion effluents
AU2156000A (en) * 1998-11-23 2000-06-13 Mobil Oil Corporation Liquid urea exhaust gas treatment additive
EP1296907B1 (en) * 2000-03-08 2006-08-16 ISG Resources, Inc. Control of ammonia emission from ammonia-laden fly ash in concrete
US6280695B1 (en) 2000-07-10 2001-08-28 Ge Energy & Environmental Research Corp. Method of reducing NOx in a combustion flue gas
US20020199156A1 (en) * 2001-05-23 2002-12-26 Fuel Tech, Inc. Hardware-adaptable data visualization tool for use in complex data analysis and engineering design
US6797035B2 (en) * 2002-08-30 2004-09-28 Ada Environmental Solutions, Llc Oxidizing additives for control of particulate emissions
US8449288B2 (en) * 2003-03-19 2013-05-28 Nalco Mobotec, Inc. Urea-based mixing process for increasing combustion efficiency and reduction of nitrogen oxides (NOx)
US7670569B2 (en) * 2003-06-13 2010-03-02 Mobotec Usa, Inc. Combustion furnace humidification devices, systems & methods
US7537743B2 (en) * 2004-02-14 2009-05-26 Mobotec Usa, Inc. Method for in-furnace regulation of SO3 in catalytic NOx reducing systems
US8251694B2 (en) * 2004-02-14 2012-08-28 Nalco Mobotec, Inc. Method for in-furnace reduction flue gas acidity
US7410356B2 (en) 2005-11-17 2008-08-12 Mobotec Usa, Inc. Circulating fluidized bed boiler having improved reactant utilization
US8069824B2 (en) * 2008-06-19 2011-12-06 Nalco Mobotec, Inc. Circulating fluidized bed boiler and method of operation
US10006633B2 (en) 2014-06-03 2018-06-26 Peerless Mfg. Co Infinitely variable injector for improved SNCR performance
CN108619907A (en) * 2018-04-28 2018-10-09 南京工业大学 Vehicle urea reducing agent solution

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US3846981A (en) * 1970-10-19 1974-11-12 Nanaimo Enviro Syst Corp Emission control process and system
US3801696A (en) * 1971-11-18 1974-04-02 J Mark Apparatus for removing nitrogen oxides from engine exhaust
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US4624840A (en) * 1983-11-10 1986-11-25 Exxon Research & Engineering Company Non-catalytic method for reducing the concentration of NO in combustion effluents by injection of ammonia at temperatures greater than about 1300° K.
US4507269A (en) * 1983-11-10 1985-03-26 Exxon Research & Engineering Co. Non-catalytic method for reducing the concentration of NO in combustion effluents by injection of ammonia at temperatures greater than about 1300 degree K
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Also Published As

Publication number Publication date
FI88464B (en) 1993-02-15
DE313648T1 (en) 1989-08-03
DE3852747D1 (en) 1995-02-23
YU92888A (en) 1990-04-30
DE3852747T2 (en) 1995-05-18
US4780289A (en) 1988-10-25
DD274171A5 (en) 1989-12-13
CA1309230C (en) 1992-10-27
WO1988008824A1 (en) 1988-11-17
CN1030193A (en) 1989-01-11
EP0313648A4 (en) 1989-12-12
FI890165A0 (en) 1989-01-13
JPH01503372A (en) 1989-11-16
EP0313648B1 (en) 1995-01-11
GR880100315A (en) 1989-02-23
FI88464C (en) 1993-05-25
JP2817929B2 (en) 1998-10-30
HU205586B (en) 1992-05-28
EP0313648A1 (en) 1989-05-03
FI890165L (en) 1989-01-13
PL272425A1 (en) 1989-03-06
PT87493A (en) 1989-05-31
MX167771B (en) 1993-04-12
AU594299B2 (en) 1990-03-01
ATE116950T1 (en) 1995-01-15
PT87493B (en) 1992-09-30
AU1807488A (en) 1988-12-06
DK731788D0 (en) 1988-12-30
DK731788A (en) 1989-01-05
NO890147D0 (en) 1989-01-12
NO890147L (en) 1989-01-13
ES2006659A6 (en) 1989-05-01

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Legal Events

Date Code Title Description
HMM4 Cancellation of final prot. due to non-payment of fee